US Bridges

I 93 Ramp Ll over Comb Hov EB & Amtrk&wye

Fair

Suffolk County, Massachusetts · .5 MI S. of I90 EB · Structure no. B166828M5DOTNBI

Built
2002
23 years old
Condition
Fair
inspected May 2023
Type
Segmental Box Girder
Prestressed Concrete Continuous
Length
518 ft
4 main spans
Daily traffic
11,522
2023 count
Owner
State
State Highway Agency

About this bridge

I 93 Ramp Ll over Comb Hov EB & Amtrk&wye is a prestressed concrete continuous segmental box girder carrying I 93 Ramp Ll over Comb Hov EB & Amtrk&wye in Suffolk County, Massachusetts. It was built in 2002, so it is 23 years old, younger than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 11,522 vehicles a day, roughly 8% of them trucks, projected to reach 27,322 by 2031. The structure is 518 ft (157.8 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesI 93 Ramp Ll
CrossesComb Hov EB & Amtrk&wye
Location.5 MI S. of I90 EB
CountySuffolk County
StateMassachusetts
Coordinates42.34558, -71.05948
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.9 US tons
Inventory rating47.8 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete Continuous
DeckOther
Main spans4
Design loadHS 25 or greater
Structure length518 ft (157.8 m)
Longest span155 ft (47.2 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck14 ft (4.2 m)

Traffic and service

Average daily traffic11,522 (2023)
Projected traffic27,322 by 2031
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$15.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 93 Ramp Ll over Comb Hov EB & Amtrk&wye built?

It was built in 2002, making it 23 years old in 2025.

What condition is I 93 Ramp Ll over Comb Hov EB & Amtrk&wye in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.

How much traffic does I 93 Ramp Ll over Comb Hov EB & Amtrk&wye carry?

About 11,522 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is I 93 Ramp Ll over Comb Hov EB & Amtrk&wye?

The structure is 518 ft (157.8 m) long with a longest span of 155 ft (47.2 m) and a deck 32 ft wide.

Who owns I 93 Ramp Ll over Comb Hov EB & Amtrk&wye?

It is owned by the State Highway Agency.